The BackBox Developement Team  announced the updated release of BackBox Linux  version 4.2.
What’s new on Backbox 4.2

• Preinstalled Linux Kernel 3.16
• New Ubuntu 14.04.2 base
• Ruby 2.1
• Installer with LVM and Full Disk Encryption options
• Handy Thunar custom actions
• RAM wipe at shutdown/reboot
• System improvements
• Upstream components
• Bug corrections
• Performance boost
• Improved Anonymous mode
• Predisposition to ARM architecture (armhf Debian packages)
• Predisposition to BackBox Cloud platform
• New and updated hacking tools: beef-project, crunch, fang, galleta, jd-gui, metasploit-framework, pasco, pyew, rifiuti2, setoolkit, theharvester, tor, torsocks, volatility, weevely, whatweb, wpscan, xmount, yara, zaproxy

Backbo 4.2 System requirements:

• 32-bit or 64-bit processor
• 512 MB of system memory (RAM)
• 6 GB of disk space for installation
• Graphics card capable of 800×600 resolution
• DVD-ROM drive or USB port (2 GB)

Upgrade instructions
1. To upgrade from a previous version (BackBox 4.1) follow these instructions:

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install -f
sudo apt-get install linux-image-generic-lts-utopic linux-headers-generic-lts-utopic linux-signed-image-generic-lts-utopic
sudo apt-get purge ri1.9.1 ruby1.9.1 ruby1.9.3 bundler
sudo gem cleanup
sudo rm -rf /var/lib/gems/1.*
sudo apt-get install backbox-default-settings backbox-desktop --reinstall
sudo apt-get install backbox-tools --reinstall
sudo apt-get install beef-project metasploit-framework whatweb wpscan --reinstall
sudo apt-get autoremove --purge

 
The ISO images can be downloaded here and available for (32bit & 64bit).
http://www.backbox.org/downloads